Australian Business Number (ABN)

Australian Business Number (ABN) is an 11-digit number which is uniquely issued for every applicant by the Australian Business Register (ABR), the business registration body which works under the supervision and control of the Australian Taxation Office (ATO).

ABN is used when the holder aims to

Be identified as a business entity when trading

Distinguish tax on amounts received through business activities from Pay as You Go (PAYG) tax

ABN Lookup Tool:

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